Multi-chamber Hollow Profile for Fire Doors
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Solution Overview
Problem
Existing multi-chamber hollow profiles for fire protection doors and windows face challenges with additional connecting elements hindering processing and varying dimensions, and materials used for thermal and fire insulation often compromise on either load-bearing capacity or thermal insulation.
Innovation Solution
A multi-chamber hollow profile system connected by a thermal break, using a filler with both fire-retardant and heat-insulating properties, and eliminating additional mechanical connecting elements, with a mixture of inorganic mineral substances and hydrogen peroxide as the filling material, which adjusts properties based on requirements, and is self-foaming and self-hardening, allowing for enhanced fire and heat protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If additional mechanical connecting elements are used to connect hollow profiles, then structural strength is improved, but device complexity and processing difficulty increase
Solution Approach 1:
The patent merges the connecting element and the thermal break function into a single integrated component. The connecting web simultaneously provides mechanical connection between hollow profiles and thermal insulation, eliminating the need for separate mechanical connectors while maintaining structural strength and simplifying the overall device complexity.
Solution Approach 2:
The connecting web is designed to perform multiple functions: it acts as a mechanical connector to join hollow profiles, provides thermal break/insulation properties, and maintains structural integrity. This multi-functional design eliminates the need for additional specialized connecting elements.
2Strength
If dense materials are used for load-bearing capacity, then strength is improved, but thermal insulation performance deteriorates
Solution Approach 1:
The patent employs composite material structure where the connecting web combines materials with different properties - one component provides mechanical strength for load-bearing, while another component provides thermal insulation properties. This composite approach allows simultaneous achievement of both strength and thermal insulation performance.
Solution Approach 2:
The connecting web is designed with non-uniform structure where different regions have different material densities and properties. The outer regions provide mechanical strength for connection, while inner regions provide thermal insulation, allowing optimization of both functions in different locations of the same component.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides improved fire and heat insulation while maintaining structural integrity, with adjustable properties and simplified processing, effectively withstanding high temperatures during fires and offering enhanced wind and rain protection.
Implementation Method 1
a filler is used as the filling material in the other hollow chamber(s), which has both fire-retardant and heat-insulating fire properties
Implementation Method 2
a mixture of inorganic mineral substances and hydrogen peroxide as the filling material, which adjusts properties based on requirements, and is self-foaming and self-hardening
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 2
AI summary
A multi-chamber hollow profile (1, 1', 1", 1'') for fire doors or windows is shown and described, comprising an outer hollow profile (2A, 2A', 2A", 2A'") and an inner hollow profile (2B, 2B', 2B", 2B'"), wherein the outer hollow profile (2A, 2A', 2A", 2A'') and the inner hollow profile (2B, 2B', 2B", 2B'') are connected by means of at least two connecting webs (3, 3"), which form at least one further hollow chamber (4), and wherein the further hollow chamber(s) (4) are filled with a filling material (FM). To develop a fire-resistant profile system consisting of hollow profiles connected to each other by thermal break, it is provided that a filling material (6) is used as the filling material (FM) in the further hollow chamber(s) (4), which has both fire-retardant and thermal insulating properties. exhibits certain properties.Furthermore, a method is described in which the filling material (FM) is mixed in the specified ratio and then filled into the cavity of the respective further hollow body(s) (4) of the multi-chamber hollow profile (1, 1', 1", 1'') by means of at least one lance (8), wherein the lance (8) is inserted into the further hollow chamber(s) (4) before filling until the end of the chamber(s) (4) and is withdrawn uniformly from the cavity to be filled of the hollow chamber(s) (4) during the filling process.